July 2017 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Pharo 61 crashes on iceberg history

by herby＠mailbox.sk

Me, too. Primitive failure. 117, IIRC. On July 30, 2017 3:51:56 AM GMT+02:00, "JuliÃ¡n Maestri" <serpi90(a)gmail.com> wrote: >I'm almost sure this is not the right place to report it. > >Im having a vm crash when looking at the history of a repository on >iceberg. > >urpharo: malloc.c:2394: sysmalloc: Assertion `(old_top == initial_top >(av) >> && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && >prev_inuse >> (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' >failed. >> ./pharo-ui: line 11: 2011 Aborted (core dumped) >> "$DIR"/"pharo-vm/pharo" "$@" >> > >Pharo downloaded from get.pharo.org/64/ on Ubuntu 16.04 (64bit) > >Has somebody had this problem? >Where's the right place to report this? > >Thanks, JuliÃ¡n

July 30, 2017

Re: [Pharo-users] STON question

by Stephane Ducasse

> First question is, why do anything at all ? > > STON toStringPretty: <your game collector object> > > Then loading is as simple as > > STON fromString: '...' I know :) Now I wanted to overuse STON to be able to edit manually the file too. > Next step is to customise how STON output is generated (but again, why ?). > > You do that by writing both an #stonOn: and a #fromSton: method (look for implementors for examples). > > If you really want, you could get something like: > > GameCollector [ > GameItem { > #name : 'Final Fantasy X', > #console : #PS2, > #hasDocumentation : false, > #hasBox : true, > #finished : true, > #condition : 'Good', > #quotation : 10, > #critics : 18, > #comments : 'quite cool in fact' > }, > GameItem { > #name : 'Final Fantasy XII', > #console : '', > #hasDocumentation : true, > #hasBox : false, > #finished : false, > #condition : 'Good', > #quotation : 10, > #critics : 15, > #comments : '' > } > ] > > to work. > > Something like (untested): > > GameCollector>>stonOn: stonWriter > stonWriter writeObject: self do: [ > stonWriter encodeList: self items ] > > GameCollector class>>fromSton: stonReader > | collector | > collector := self new. > stonReader parseListDo: [ :each | > collector addGameItem: each ]. > ^ collector Thanks this is what I was looking for. :)

July 30, 2017

Re: [Pharo-users] NeoJSON "conditional" parsing/mapping

by Esteban A. Maringolo

2017-07-26 18:36 GMT-03:00 Sven Van Caekenberghe <sven(a)stfx.eu>: > Esteban, > > I had a quick look at the spec you mentioned. > > I am a bit puzzled though. Result can be anything, so how are you going to map that to specific classes (and why) ? > That would require serious prior knowledge and even then, not every situation can be mapped easily to a class Since I'm going to use it in the context of RPC calls, I can know beforehand what kind of class is the result, so I want to leverage that knowledge to avoid going through an intermediate Dictionary/map to build the object. > You speak about subclassing NeoJSONObject, which is cool, because it is so flexible, but then why type it further ? > If I were you, I would at least start the easy/lazy way. > For example you could do > NeoJSONObject fromString: '...' > And see how far you get. If things get slow, I would look for alternatives. Yeap... I took your advice after making things unnecessarily complex... after the first... and second attempt. I tried to make a client too smart and early optimize for things I haven't used before, so I ended up making stuff convoluted (I'm specialist). Long story short, I almost ended up where I started, which was a fork of LtRpcJsonClient, with some minor fixes, using NeoJSON instead of the JSON package for parsing/writing and using NeoJSONObject as mapClass, named: NeoJSONRPCClient [1] I'm using it to build a particular client that uses JSON-RPC, so most of my specific needs were moved/implemented in my still unfinished client subclass, if behavior becomes abstract enough, I can push it up to the "general purpose" client. I didn't skip the build of the map object, but for my domain specific classes I pass the map to my specific instances, so each instance holds a reference to the map object used to build it. I didn't feel comfortable subclassing domain specific classes from Dictionary. Regards! Esteban A. Maringolo [1] It's available at https://github.com/eMaringolo/NeoJSONRPC but I'm still learning how to do Baselines and other stuff to work with this pet-project I'm using to learn Iceberg. So the baseline doesn't work... yet :|

July 30, 2017

Re: [Pharo-users] Looking for small boards and tiny computers which can run Pharo

by Steven Costiou

Hi, thanks everybody for all the leads. I will look into all those :) Steven. Le 2017-07-25 19:11, Bruce O'Neel a Ã©crit : > Hi, > > With a bit of work it probably fits on one of these: > > https://onion.io/omega2/ > > If you feel on really wasting space this would work as well, though it would need some porting if you wanted to run it locally. > > https://getchip.com/pages/pocketchip > > If you don't want the display and keyboard and want to run it remote this will work then, it's the CPU from the above. > > https://getchip.com/pages/chip > > If I get some free time I can poke at these and see how well Squeak etc runs. > > cheers > > bruce > > _24 July 2017 21:30 Steven Costiou <steven.costiou(a)kloum.io> wrote:_ > >> Hi, >> >> i am looking for: >> >> - small hardware, boards/computers, "embeddable" devices, etc. that can run Pharo (except Raspberry pi that i already know) >> >> - robots, flying drones or things alike with an open linux which can possibly run Pharo >> >> Could somebody points me to documentation or web sites where such things can be found ? >> >> Thanks, >> >> Steven.

July 30, 2017

Pharo launcher on Linux Mint

by Sebastian Heidbrink

Hi! I used Pharo launcher on Windows and Ubuntu before and never had any troubles. Now, I am trying to used it on Linux Mint without success. Once I start the freshly created image the appropriate VM is downloaded but the image is not started. A PharoDebug.log is created in the image folder complaining that it can't find the PharoVXX.sources files in the "pharo/bin/lib/pharo/5.0-201707201942" folder. After I copy the missing file into that folder the image is still not opened and no further logs are created or updated. A downloaded Pharo.zip from the Pharo website opens just fine. Is this a known issue? Thank you! Sebastian

July 30, 2017

Re: [Pharo-users] STON question

by Sven Van Caekenberghe

First question is, why do anything at all ? STON toStringPretty: <your game collector object> Then loading is as simple as STON fromString: '...' Next step is to customise how STON output is generated (but again, why ?). You do that by writing both an #stonOn: and a #fromSton: method (look for implementors for examples). If you really want, you could get something like: GameCollector [ GameItem { #name : 'Final Fantasy X', #console : #PS2, #hasDocumentation : false, #hasBox : true, #finished : true, #condition : 'Good', #quotation : 10, #critics : 18, #comments : 'quite cool in fact' }, GameItem { #name : 'Final Fantasy XII', #console : '', #hasDocumentation : true, #hasBox : false, #finished : false, #condition : 'Good', #quotation : 10, #critics : 15, #comments : '' } ] to work. Something like (untested): GameCollector>>stonOn: stonWriter stonWriter writeObject: self do: [ stonWriter encodeList: self items ] GameCollector class>>fromSton: stonReader | collector | collector := self new. stonReader parseListDo: [ :each | collector addGameItem: each ]. ^ collector > On 30 Jul 2017, at 17:39, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > > Hi sven > > I'm coding with my son a game collector application :) > We want to save our collection with STON > > So far we have > > GameCollector asSTON >> > > String streamContents: [ :s | STON put: self onStreamPretty: s ] > > and we get > > GameCollector { > #items : OrderedCollection [ > GameItem { > #name : 'Final Fantasy X', > #console : #PS2, > #hasDocumentation : false, > #hasBox : true, > #finished : true, > #condition : 'Good', > #quotation : 10, > #critics : 18, > #comments : 'quite cool in fact' > }, > GameItem { > #name : 'Final Fantasy XII', > #console : '', > #hasDocumentation : true, > #hasBox : false, > #finished : false, > #condition : 'Good', > #quotation : 10, > #critics : 15, > #comments : '' > } > ] > } > > And this is good. > Now I wanted to use STON to save the items without the class structure > > to get something like > > OrderedCollection [ > GameItem { > #name : 'Final Fantasy X', > #console : #PS2, > #hasDocumentation : false, > #hasBox : true, > #finished : true, > #condition : 'Good', > #quotation : 10, > #critics : 18, > #comments : 'quite cool in fact' > }, > GameItem { > #name : 'Final Fantasy XII', > #console : '', > #hasDocumentation : true, > #hasBox : false, > #finished : false, > #condition : 'Good', > #quotation : 10, > #critics : 15, > #comments : '' > } > ] > > > I coded as > > GameCollector >> asSTON > > ^ String streamContents: [ :s | STON put: items onStreamPretty: s ] > > and STON is not happy on reload. > > I know that we are bending the rules. > Is there a way to do simply what I want? > > I could leave also with > > GameItem { > #name : 'Final Fantasy X', > #console : #PS2, > #hasDocumentation : false, > #hasBox : true, > #finished : true, > #condition : 'Good', > #quotation : 10, > #critics : 18, > #comments : 'quite cool in fact' > }, > GameItem { > #name : 'Final Fantasy XII', > #console : '', > #hasDocumentation : true, > #hasBox : false, > #finished : false, > #condition : 'Good', > #quotation : 10, > #critics : 15, > #comments : '' > } > > Stef >

July 30, 2017

Re: [Pharo-users] STON question

by Cyril Ferlicot D.

Le 30/07/2017 Ã 17:39, Stephane Ducasse a Ã©crit : > Hi sven > > I'm coding with my son a game collector application :) > We want to save our collection with STON > > So far we have > > GameCollector asSTON >> > > String streamContents: [ :s | STON put: self onStreamPretty: s ] > > and we get > > GameCollector { > #items : OrderedCollection [ > GameItem { > #name : 'Final Fantasy X', > #console : #PS2, > #hasDocumentation : false, > #hasBox : true, > #finished : true, > #condition : 'Good', > #quotation : 10, > #critics : 18, > #comments : 'quite cool in fact' > }, > GameItem { > #name : 'Final Fantasy XII', > #console : '', > #hasDocumentation : true, > #hasBox : false, > #finished : false, > #condition : 'Good', > #quotation : 10, > #critics : 15, > #comments : '' > } > ] > } > > And this is good. > Now I wanted to use STON to save the items without the class structure > > to get something like > > OrderedCollection [ > GameItem { > #name : 'Final Fantasy X', > #console : #PS2, > #hasDocumentation : false, > #hasBox : true, > #finished : true, > #condition : 'Good', > #quotation : 10, > #critics : 18, > #comments : 'quite cool in fact' > }, > GameItem { > #name : 'Final Fantasy XII', > #console : '', > #hasDocumentation : true, > #hasBox : false, > #finished : false, > #condition : 'Good', > #quotation : 10, > #critics : 15, > #comments : '' > } > ] > > > I coded as > > GameCollector >> asSTON > > ^ String streamContents: [ :s | STON put: items onStreamPretty: s ] > > and STON is not happy on reload. > > I know that we are bending the rules. > Is there a way to do simply what I want? > > I could leave also with > > GameItem { > #name : 'Final Fantasy X', > #console : #PS2, > #hasDocumentation : false, > #hasBox : true, > #finished : true, > #condition : 'Good', > #quotation : 10, > #critics : 18, > #comments : 'quite cool in fact' > }, > GameItem { > #name : 'Final Fantasy XII', > #console : '', > #hasDocumentation : true, > #hasBox : false, > #finished : false, > #condition : 'Good', > #quotation : 10, > #critics : 15, > #comments : '' > } > > Stef > Hi, Maybe you can just create a new GameCollector on the reading. "protocol: instance-creation" GameCollector class>>importFromFile: aFile ^ self new items: (STON fromString: aFile contents); yourself -- Cyril Ferlicot https://ferlicot.fr http://www.synectique.eu 2 rue Jacques PrÃ©vert 01, 59650 Villeneuve d'ascq France

July 30, 2017

STON question

by Stephane Ducasse

Hi sven I'm coding with my son a game collector application :) We want to save our collection with STON So far we have GameCollector asSTON >> String streamContents: [ :s | STON put: self onStreamPretty: s ] and we get GameCollector { #items : OrderedCollection [ GameItem { #name : 'Final Fantasy X', #console : #PS2, #hasDocumentation : false, #hasBox : true, #finished : true, #condition : 'Good', #quotation : 10, #critics : 18, #comments : 'quite cool in fact' }, GameItem { #name : 'Final Fantasy XII', #console : '', #hasDocumentation : true, #hasBox : false, #finished : false, #condition : 'Good', #quotation : 10, #critics : 15, #comments : '' } ] } And this is good. Now I wanted to use STON to save the items without the class structure to get something like OrderedCollection [ GameItem { #name : 'Final Fantasy X', #console : #PS2, #hasDocumentation : false, #hasBox : true, #finished : true, #condition : 'Good', #quotation : 10, #critics : 18, #comments : 'quite cool in fact' }, GameItem { #name : 'Final Fantasy XII', #console : '', #hasDocumentation : true, #hasBox : false, #finished : false, #condition : 'Good', #quotation : 10, #critics : 15, #comments : '' } ] I coded as GameCollector >> asSTON ^ String streamContents: [ :s | STON put: items onStreamPretty: s ] and STON is not happy on reload. I know that we are bending the rules. Is there a way to do simply what I want? I could leave also with GameItem { #name : 'Final Fantasy X', #console : #PS2, #hasDocumentation : false, #hasBox : true, #finished : true, #condition : 'Good', #quotation : 10, #critics : 18, #comments : 'quite cool in fact' }, GameItem { #name : 'Final Fantasy XII', #console : '', #hasDocumentation : true, #hasBox : false, #finished : false, #condition : 'Good', #quotation : 10, #critics : 15, #comments : '' } Stef

July 30, 2017

Re: [Pharo-users] Iceberg and removing packages

by Esteban A. Maringolo

I got into the pharo-local/iceberg/... and git rm'ed the directory, commited and synchronized the project in Iceberg. I hope it doesn't break anything since I don't know how much "magic" does Iceberg behind the scenes other than automating the git commands and providing a centralized UI. What is the "This is all you need to read to understand Iceberg?" document I should read? I read its wiki, but it seems there is more to go. Regards! Esteban A. Maringolo 2017-07-30 11:28 GMT-03:00 Peter Uhnak <i.uhnak(a)gmail.com>: > This was supposedly fixed in April https://github.com/pharo-vcs/iceberg/issues/317 > > however I had the same issue ~two months ago, so I had to delete the packages by hand. > > P > > > On Sun, Jul 30, 2017 at 11:04:20AM -0300, Esteban A. Maringolo wrote: >> Hi, >> >> I'm playing around with Iceberg in Pharo 6, and even when I find the >> workflow streamlined, but since it doesn't map 1:1 with git workflow >> from other IDEs or command line, I find myself not knowing how to do >> certain tasks. >> >> One thing that happened is that I published a few packages to one of >> my repos in Github, then I decided to remove one of the packages from >> the repo, then I synchronized it but in the repo there is still is the >> package folder for the package I removed. >> >> What should I do to definitely remove those files from the commit? >> >> Regards! >> >> Esteban A. Maringolo >> >

July 30, 2017

Re: [Pharo-users] Iceberg and removing packages

by Peter Uhnak

This was supposedly fixed in April https://github.com/pharo-vcs/iceberg/issues/317 however I had the same issue ~two months ago, so I had to delete the packages by hand. P On Sun, Jul 30, 2017 at 11:04:20AM -0300, Esteban A. Maringolo wrote: > Hi, > > I'm playing around with Iceberg in Pharo 6, and even when I find the > workflow streamlined, but since it doesn't map 1:1 with git workflow > from other IDEs or command line, I find myself not knowing how to do > certain tasks. > > One thing that happened is that I published a few packages to one of > my repos in Github, then I decided to remove one of the packages from > the repo, then I synchronized it but in the repo there is still is the > package folder for the package I removed. > > What should I do to definitely remove those files from the commit? > > Regards! > > Esteban A. Maringolo >

July 30, 2017